John Clark(e) and his father William

Member

After sometime searching I am now in a stuck position.
I am trying to find out information regarding my 3*GG John Clark(e), born roughly around 1834.
From 1861 onwards, the census records show that he was born in Manchester Lancashire.
I know from his marriage certificate in 1859 that his fathers name showing is Wm ( I presume this being William )?!?
Could William be a middle name?????
If he was deceased, would that show on the marriage certificate from that time (1859)

I have found a John Clarke with his mother's name Mary but no William in the 1851 census. (they are lodging with a Thomas Street)!